I bought this=Valvulator V-1 Line Driver/Power Supply --=http://www.vhtamp.com/frames.html It uses a vacuum tube based buffer circuit to change your guitar signal from high to low impedance. As a result, your signal overcomes high frequency degrading caused by cable capacitance, impedance effects, and signal degrade caused by the circuits of effects devices. Experience the same dynamic feel as you would get plugged directly into your amp. Bla Bla Bla--Sells for 199.99$$ i bought it for alot less--from what ive read customer service SUCKS--i believe it--i emailed them 2 weeks ago w no reply..it works great so far anyway..question is--should i keep this or ebay it for the money to buy something maybe more reliable like a Voodo Lab power supply? Good replies about that one..I just dont wanna sit on something that may or may not crash at any time and be assed out. Its cool that it has a vacume tube though--cant say many has that...Opinions?